Experimental Valve Procedures
Experimental Valve Procedures - Related Videos
06:56
An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices
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Cited by 1 •
2023
We present a method for mounting a porcine aortic valve on a pulse duplicator to test its hydrodynamic properties. This method can be used to determine the change in hydrodynamics after the application of an experimental procedure or novel medical device prior to use in a large animal model.
04:19
Pressure Fixation of Isolated Murine Pulmonary Valve: A Procedure to Isolate and Chemically Fix the Mouse Pulmonary Valve in Closed Conformation
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2025
In this video, we describe the procedure to isolate and chemically fix the mouse pulmonary value in closed conformation via perfusion pressurization.
07:36
Experimental Procedure for Warm Spinning of Cast Aluminum Components
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Cited by 2 •
2017
An experimental protocol for instrumented warm rotary forming of cast aluminum alloys employing a bespoke industrially scaled apparatus is presented. Experimental considerations including thermal and mechanical effects are discussed, as well as similitude with full-scale processing of automotive wheels.
08:55
Isolation and Characterization of Primary Rat Valve Interstitial Cells: A New Model to Study Aortic Valve Calcification
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Cited by 17 •
2017
This protocol describes the isolation, culture, and calcification of rat-derived valve interstitial cells, a highly physiological in vitro model of calcific aortic valve disease (CAVD). Exploitation of this rat model facilitates CAVD research in exploring the cell and molecular mechanisms that underlie this complex pathological process.
12:27
Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures
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Cited by 9 •
2009
This work describes basic procedures of noninvasive small animal MRI and MRS in vivo.
FAQs
Valve motion depends on the pressure relationship across the device. A higher upstream pressure should open the valve, whereas pressure reversal should drive closure and limit backward flow. Experimental evaluation therefore examines opening and closing behavior, sealing performance, and motion under controlled conditions. These measurements help identify designs that reproduce reliable one-way flow rather than merely moving mechanically.
Researchers assess durability, sealing, blood compatibility, and tissue response because each characteristic addresses a different risk. Durability indicates whether the device can withstand repeated operation, while sealing reflects control of backward flow. Blood compatibility and tissue response reveal how the design interacts with blood and surrounding biology. Considering these factors together supports more complete assessment of implant suitability.
These approaches provide complementary evidence rather than interchangeable results. Bench testing examines device behavior under controlled conditions, computational modeling analyzes predicted performance, and preclinical studies evaluate responses in a biological setting. Using the approaches together allows investigators to study valve motion and durability while also considering tissue response and blood compatibility before advancing a bioengineered design.
A development workflow can begin with a bioengineered device, material, or technique and then progress through controlled evaluation, computational analysis, and preclinical study. Early work focuses on motion, sealing, and durability, while later assessment adds blood compatibility and tissue response. This sequence generates evidence for refining the design and judging whether it is ready for further cardiovascular implant development.
Minimally invasive delivery systems are studied as part of the broader device-development process, not separately from valve performance. Investigators can evaluate how a replacement or repair device is delivered while also examining its motion, sealing, durability, and biological interactions. This connection is important because a promising valve design must support both effective placement and dependable function after delivery.
They are useful when researchers need to develop or evaluate prosthetic valves, minimally invasive delivery systems, or tissue-engineered replacements. The procedures connect device design with controlled testing, computational modeling, and preclinical assessment. Their findings can guide safer and more durable cardiovascular implants, while also supporting improved treatment options for valve disease through evidence about mechanical and biological performance.